IRIS Movie of the Day
At least once a week a movie of the Sun taken by NASA's Interface Region Imaging Spectrograph (IRIS) is posted by one of the scientists operating the instrument.
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18 May 2020
Solar flares and jets
Credit: IRIS, LMSAL/NASA, Paola Testa
This IRIS observations catches a complex sequence of energetic events in AR 12736 on 2019/03/22, including jets and flares in short and long loops in the active region. The IRIS slit (observed as a dark vertical line in the images of this movie) captures the eruption and provides information on the plasma properties of the emitting material, including its velocity and density. Together with the slit-jaw images, the IRIS spectra indicate a complex event with spire-like jets, repeated energy releases, and eruption of cool and dense material.